Ruby and diamond ring, the antique cushion-shaped step-cut ruby, weighing 3.62 carats, is claw-set between a pair of trapezoid-shaped diamonds, together weighing approximately 0.55 carats, mounted in two colour 18ct gold, size M, accompanied by a Swiss Gemmological Institute report numbered 98411, dated 7 March 2018, stating that the 3.621 carat ruby is natural, with no indication of heat treatment, of Mozambique origin.